假设一个柯布—道格拉斯生产函数，资本和劳动的贡献都是1／2。如果全要素生产率增长为0，劳动和资本各增加2％，那么()。
A. 产出会增加4 %，资本的边际产出为Y／K
B. 产出会增加2％，资本的边际产出为Y／(2K)
C. 产出会增加2％，劳动的边际产出为(2Y)／N
D. 产出会增加1％，劳动的边际产出为(2Y)／K
查看答案
A．allowedB．temptedC．convincedD．caused
A. allowed
B. tempted
C. convinced
D. caused
What is the lecture mainly about？
A. Commercials on television
B. Marketing brand-name products
C. A book by Rob Frankel
D. Selling Aunt Ruby's chicken
Why does the man go to see his professor？
A. To take a makeup test for a class that he missed
B. To explain why he has been absent from class
C. To turn in an extra credit project to the professor
D. To ask the professor how to bring up his grade
Which of the following is the main topic of the lecture？
A progressive view of agriculture"
B. The conditions for the development of agriculture
C. A comparison of hunter-gatherers and farmers
D. The negative effects of agriculture on early farmers
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